Pump.



R. K. MINER.

PUMP. 1,069,894. 6' Patented Aug. 12, 1913.

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R. K. MINER.

PUMP.

APPLICATION FILED MAR. 6, 1912.

Patented Aug. 12,, 1913.

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PUMP.

APPLICATION FILED MAR. a, 1912.

1,069,894., Patented Aug. 12,1913.

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R. K. MINER.

PUMP.

APPLICATION FILED MAR. 6, 1912. X 1,069,894. Patented Aug. 12, 1913.

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RALPH KINNEY MINER, 0F ORISKANY FALLS, NEW YORK, ASSIGNOR TO D. H.BURRELL & COMPANY, OF LITTLE FALLS, NEW YORK.

PUMP.

Specification of Letters Patent.

Patented Aug. 12,1913.

Application filed March 6, 1912. Serial No. 681,973.

To all whom it may concern:

Be it known that I, RALPH KINNEY MINER, a citizen of the United States,residing at Oriskany Falls, in the county of Oneida and State of NewYork, have invented a new and useful Improvement in Pumps, of which thefollowing is a specification.

This invention relates to a double acting piston pump which isparticularly desirable for use as a milk pump and in which the pumpcylinder and its valves are so constructed that they can be readilyarranged in different positions, as may be most con-- venient, and sothat the parts can be readily taken apart for cleaning and reassembledfor use, which is an important considera tion in milk pumps in order tomaintain the same in sanitary condition.

In the accompanying drawings: Figure 1 is a side elevation of thisimproved pump. Fig. 2 is a top plan view of the same with the pumpcylinder omitted. Fig. 3 is an end elevation of the parts shown in Fig.2. Fig. 4 is a longitudinal section through the pump cylinder on line4-41, Fig. 6. Fig. 5 is a longitudinal section through the valve pocketson line 5-5, Fig. 6. Fig. 6 is a cross section on line 66, Fig. 1. Fig.7 is a longitudinal section on line 7-7, Fig. 6. Fig. 8 is an endelevation of the pump casing with the heads omitted. Fig. 9 is a sideelevation, on an enlarged scale, of the suction valves and cage. Fig. 10is a longitudinal section of the same. Fig. 11 is a cross section online 1111, Fig. 9. Fig. 12 is a longitudinal elevation, partly insection, of the discharge valves and cage. Figs. 13, 141 and 15 are endviews of the pump casing in different positions. Fig. 16 is a sideelevation, partly in section, of the pump casing and its heads.

Like reference characters refer to like parts in the several figures.

A represents the steam or power cylinder which may be of any ordinary orsuitable construction.

B represents the frame which supports the steam cylinder and also thepump cylinder. This frame is provided at the end which is farthest fromthe steam cylinder with a circular head or supporting plate B to whichthe inner head C of the pump cylinder is secured by bolts 6. The plate Bis arranged concentrically with reference to the axis of the steamcylinder, its piston rod (Z and the pump piston D, while the inner head0 of the pump cylinder is arranged eccentrically with reference to theaxis of the steam cylinder. The pump casing E and the outer head F aresecured to the innor head C by longitudinal screw bolts f which passthrough ears f on the outer head F and are screwed into ears 0 on theinner head C. Upon removing these bolts the casing E and the head F aredetached from the inner head C and from each other.

The casing E is provided with three 1ongitudinal cylindrical bores 9,ill and 2', of which the bore '9 is arranged in line with the piston rodd and forms the pump cylinder in which the piston D moves back andforth, while the two smaller bores 71. and 2' form cavities or pocketsin which the pump valves are arranged. Each of the three bores extendslengthwise through the body portion of the casing which is provided atits ends with flanges E E for connection, respectively, with the innerand outer heads C and F. The ends of the body portion of the casing areseparated from the heads G and F by recessed flow spaces 6 which connectthe ends of the valve pockets h and 2' with the ends of the pumpcylinder. The pump casing is provided with two pipe connections 7c and Zwhich are arranged at right angles to each other and which communicaterespectively with the valve cavities or pockets h and 2' midway betweenthe ends thereof. One of these pipes operates as the induction orsuction pipe and the other as the eduction or discharge pipe and eitherpipe may be used for either purpose, depending upon the arrangement ofthe interchangeable suction and discharge valves in the pockets h and i.

N represents a holder or cage in which the suction valves 0 are arrangedand which comprises two annular heads a and longitudinal spacing rods nto which these heads are secured. The external diameter of the heads ais such that the cage will fit snugly in either of the bores h and z ofthe pump casing E, and the length of the spacing rods n is such thatthey will fit between the heads of the casing E and prevent longitudinaldisplacement of the valve cage. The heads a of the cage are arranged atsuch a distance apart that the space between them will communicate witheither of the pipes 70 and Z. The suction valves 0 are arranged to closeagainst the outer sides of the heads a and are held'to their seats by aspring P which connects both valves and can be readily detached from thesame when the cage has been drawn out of the pocket.

Q represents the cage for theeduction or discharge valves It, which cageis constructed like the cage N and composed oi": annular heads 9 andspacing rods 9. e'duction valves are seated against the inner sides ofthe heads 9 and'pressed against the same by a springs arranged betweenthese valves.

The two valve cagesare interchangeable and either of them may bearranged in either of the pockets it and 2'. of the pump casing. Thisenables either-pipe 70 or Z to'be ,used as the suction pipe an'd'theother as the discharge pipe, as may be most convenient. Ordinarilythehorizontal'pipe 7c connecting with the pocket'h would be used as thesuction pipe and the vertical pipe Zas the discharge pipe.

Upon detachingthe casing E and head'F from the inner head 0 and fromeach other, and removing the valve cages from their pockets, all of theparts of the pump'cylinder are separated and rendered accessible forthorough cleaning. The-parts can be readily assembled'again for useafter having been cleaned, thus rendering it easy to keep all parts ofthe pump through which 'the milk flows or which come in contact with themilk in a clean and sanitary condition.

The pump casing and the heads are preferably so constructed thattheseparts can be arranged in different positions for use, asrepresented in Figs. 1, 2, 6, 8, 13, 14c and 15. In Figs. 1, 2, 6 and 8the casing is so arranged that the valve pockets'are arranged on theright hand side of the casing, when looking from the pump cylindertoward the steam cylinder, and thehorizo'ntal pipe connection forms theinlet and the. vertical connection Z the discharge. In Fig. 13 the pumpcasing has been so turned between the heads C and F that the verticalpipe connection Z points downward and forms the inlet and the'horizontalconnection it forms the discharge. In Fig-14 the valvepockets arearranged on 'the left handsi de of the "casing, which position isproduced turn- 'ing the inner head G Tone-half around .on the pistonrod, as indicated by d'ottedlinesin Fig. 2, f'or'which purpose the innerhead O -is detached from the supporting plate 13 and after having beenturned toth'e new po- 'sition is again secured'thereto, andthen'sec'uringthe casing and the o'uter'head in the desired position tothe inner :head. The horizontal pipe connection 73 forms the inlet and"the vertical connection Z the discharge, as in Figs. 1, '2, 6 and8. Inthe position shown inFig. 15' the'val've'pockets are on the left handside of the casing, as

. in Fig. l l, but the vertical connection Z forms the inlet and thehorizontal connection 70 the discharge.

In order to enable the heads C and F and the casing E to be accuratelyand quickly registered with reference to each other in these differentpositions, the heads are pro- 'vide'd with dowel pins t and the casingat its ends with corresponding sockets t.

The cylinder beads C and F and the flanges E and E of the casing arepreferably of circular outline, as shown. by arranging'the valvechambers'inside of the cir cular outline ofthese'parts 1t ls posslble toform the engagmg faces of the heads'and casing by a simple turningoperation and to pack the joints between. these members with an ordinarycircular packing. It is only necessary to pack onevjoint at each end ofthe casing to prevent leakage from the valve chambers as well 'as' from1 the cylinder. Also by reason of=the heads and casingbeing symmetricalit is possible to turn the valve pocket, said casing having-a circularseat at [each end surroundingfboth of said bores, of a piston arrangedin said pump cylinder, circular heads applied to the seats at the endsof said casing and extending over the bores therein, and a valvearranged in said pocket, substantially as set forth.

2. The combination with a pumpcasing open at both ends and providedwitha plurality of bores extending lengtl'iwise through the body of thecasing, one 'bore forming 'the pump cylinder and two other boresforrningvalve pockets, said caslng havlng circular seats 'at' ts endssurrounding all of sald bores,. of ,a pistonarranged in said pumpcylinder, circular. heads applied to-the seats at the ends 'ofsaidcasing andiextending over the boresthere n, and lnterchange'able suctionand dlscharge valves arranged in said pockets, substantiallyas setforth.

3. The combination of a pump casing having a plurality. ofstraight-sided bores eX- tending lengthwise therethrough, one boreforming the pump cylinder and another'bore forming a valve pocket, valvemechanism "removably mounted I in said pocket, and a head applied to'eachendof casing,

covering the bores therein and retaining said valve mechanism i nsaidpocket, substantially as setforth.

4. The combination of a pump casing open at both ends and provided witha pump cylinder and a valve pocket extending lengthwise through thecasing, a valve cage removably mounted in said pocket, an automaticallyacting valve mounted in and retained by said cage, and a head applied toeach end of said casing, covering said pump cylinder and valve pocket,said valve cage being retained in said pocket by said heads,substantially as set forth.

5. The combination with a pump casing open at both ends and providedwith a pump cylinder and a valve pocket extending lengthwise through thecasing, of heads extending over opposite ends of said casing, a valvecage arranged removably in said pocket and provided with spacing devicesprojecting into engagement with said heads, and valves arranged in saidcage, substantially as set forth.

6. The combination with a pump casing open at both ends and having avalve pocket extending lengthwise through the casing, a pipe connectioncommunicating with said pocket between the ends thereof, and headsapplied to opposite ends of said casing, of a valve cage comprisinglongitudinal spacing bars and annular heads secured to said bars andforming valve seats on opposite sides of said pipe connection, andvalves applied to said seats, substantially as set forth.

7. The combination with a pump casing open at both ends and having abore for the pump piston and a valve pocket ex tending lengthwisethrough the casing, a pipe connection communicating with said pocketbetween the ends thereof, and a head applied to each end of said casingand covering said bore and pocket, of a valve cage removably arranged insaid pocket and retained therein by said heads and provided with valveseats on opposite sides of said pipe connection, and valves applied tosaid seats and retained by said cage, substantially as set forth.

8. The combination with a pump casing open at both ends and having abore for the pump piston and a valve pocket extending lengthwise throughthe casing, a pipe connection communicating with said pocket between theends thereof, and a head applied to each end of said casing, coveringsaid bore and pocket, of a valve cage removably arranged in said pocketand retained therein by said heads and provided with valve seats onopposite sides of said pipe connection, valves applied to said seats,and a spring connecting said valves, substantially as set forth.

9. The combination with a power cylinder, its piston rod, a pump pistonsecured to said rod, and a supporting frame, of a circular head, meansfor securing said head to said frame in different positions eccentric tosaid piston rod, a pump casing secured at one end to said head andprovided with a pump cylinder and valve pockets extending lengthwisethrough said casing and with pipe connections communicating with saidpockets and arranged at angles to each other, and a head applied to theopposite end of said casing, substantially as set forth.

10. The combination with a power cylinder, its piston rod, a pump pistonsecured to said rod, and a supporting frame, of a symmetrical headsecured to said frame, a pump casing provided with a pump cylinder andvalve pockets extending lengthwise through the casing and having seatsat each end thereof adapted to fit said head interchangeably, asimilarly shaped head adapted to be secured upon the seat at the outerend of said casing, said heads covering the ends of the pump cylinderand valve pockets, and interchangeable suction and discharge valvesremovably mounted in said pockets, substantially as set forth.

11. The combination of a pump casing provided with a pump cylinder andvalve pockets extending lengthwise through said casing, and with pipeconnections communicating with said pockets and arranged at right anglesto each other, heads applied to opposite ends of said casing, saidcasing being capable of being shifted to make either pipe connection theinlet or discharge, and interchangeable suction and discharge valves,substantially as set forth.

WVitness my hand in the presence of two subscribing witnesses.

RALPH KINNE Y MINER.

lVitnesses HARVEY FELDMEIER, Gno. W. BELLINGER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

